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Llana [10]
2 years ago
7

PLEASE HELP!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Annette [7]2 years ago
8 0
Oh no mate I’m not doing your entire homework for you lol. Just find a cylinder surface area calculator online and plug the values in.
kobusy [5.1K]2 years ago
7 0

Answer:

calculate the surface by 2πrh+2πr².

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For a random sample of 50 measurements on the breaking strength of cotton threads, the mean breaking strength was found to be 21
Vikentia [17]

Answer:

205.81 to 214.19

Step-by-step explanation:

Sample size (n) = 50

Sample mean weight (X) = 210 grams

Sample standard deviation (s) = 18 grams

Confidence coefficient (Z) at 90% = 1.645

The confidence interval for the true mean breaking strength of cotton threads of this type, at a 90% confidence level, is given by:

CI=X \pm Z*\frac{s}{\sqrt n}\\CI=210 \pm 1.645*\frac{18}{\sqrt 50}\\CI = 210 \pm 4.19\\CI =205.81\ to\ 214.19

The confidence interval is 205.81 grams to 214.19 grams.

6 0
3 years ago
PLEASE ANSWER!!!!! After five years of earning interest at an annual rate of 3%, an investment has earned $950 in interest. To t
kvv77 [185]
Problem
After five years of earning interest at an annual rate of 3%, an investment has earned $950 in interest. To the nearest whole dollar, determine the amount of the initial investment.

Result

The initial investment was $6,333.

Solution
P = I/ i · t
P = 950/ 0.03 · 5
P = 6,333.333
8 0
3 years ago
Convert 68% As a fraction
Artist 52 [7]

Answer:

68/100

Step-by-step explanation:

answer is 68/100

8 0
2 years ago
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inessss [21]
I believe it’s 1.5558 x 10 to the 4th power
5 0
2 years ago
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Find the missing angle measure(s).<br> 120°<br> IX<br> 70°<br> Yº<br> 50°<br> Task Card #4
Lynna [10]

y=70(vertically opposite angle)

70+50+X =180 (sum of angles in triangles)

120+x=180

X=60 //

6 0
2 years ago
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